A new report shows a sharp decline in the number of birds in the UK. There is a similar trend in US. Anchor Marco Werman gets details from one of the repor's authors, Richard Gregory of the Royal Society for the Protection of Birds.

A new report shows a sharp decline in the number of birds in the UK. There is a similar trend in US. Anchor Marco Werman gets details from one of the repor's authors, Richard Gregory of the Royal Society for the Protection of Birds.